@cicerone imposter,
Lord on it face the statement that out of millions not one Japanese American was disloyal or involved in espionage during WW2 is silly and would take an act of god to be true.
Not one Japanese American however was prosecuted for such crimes as the code breakers of the Magic system did not wish the Japanese government to had a clue that the code had been broken.
After the war given the crying about the large round up of them on the west coast, the government did not wish to open that can of worms and no one was prosecuted for such crimes.
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http://archives.starbulletin.com/2004/08/09/editorial/commentary.html
More than any other source of intelligence, it was the "MAGIC" messages -- Japan's diplomatic communications that were decoded by American signal intelligence officers -- that influenced top decision-makers within the Roosevelt administration.
Beginning in December 1940, with the possibility of war looming, a series of MAGIC messages revealed Japan's intent to establish an espionage network in the Western Hemisphere. Within months, West Coast consulates reported to Tokyo on their progress in setting up the spy network's surveillance of military posts and bases, shipyards, airfields and ports.
A message from Japan's Los Angeles consulate stated, "We have already established contacts with absolutely reliable Japanese in the San Pedro and San Diego area, who will keep a close watch on all shipments of airplanes and other war materials, and report the amounts and destinations of such shipments. The same steps have been taken with regard to traffic across the U.S.-Mexican border." The message also stated that the network had U.S.-born Japanese-American spies in the U.S. Army.
A message from Japan's Seattle consulate stated that Japanese spies were "securing intelligences concerning the concentration of warships with-in the Bremerton Naval Yard, information with regard to mercantile shipping and airplane manufacturer, movements of military forces, as well as that which concerns troop maneuvers." The same message said that Japanese consular officials had "made arrangements to collect intelligences from second generation Japanese draftees on matters dealing with the troops, as well as troop speech and behavior."
The most detailed MAGIC messages were those sent by Japan's Honolulu consulate. With increasing frequency leading up to December 1941, these messages provided meticulous reports on ship locations and movements within Pearl Harbor. Coupled with other information, the Honolulu-Tokyo messages were, as author James Gannon put it, "a smoking gun" signaling an impending attack on Oahu -- but due to decryption backlogs, courier delays, petty rivalries and bureaucratic bungling, not a single one of them reached Hawaii before Dec. 7.
The information sent by Honolulu consular officials was obtained by an espionage cell that included at least two ethnic Japanese local residents, one of whom was a U.S. citizen. The spy ring monitored ship movements, water currents and made note of military routines on installations and at airfields. Among the agents' observations: that no American warships were stationed off the west coast of Maui, so that attacking Japanese fighter-bombers could concentrate exclusively on Oahu; that the American battleships moored in pairs, so that the inshore ship could not be struck by a torpedo; that a large number of ships were always in the port on Saturdays and Sundays; and that the Americans conducted hardly any patrols at all north of Oahu. This information was critical to the planning of the Pearl Harbor raid.
Local law enforcement officials knew about the Honolulu spies, but before Pearl Harbor there was nothing they could do to stop them since observing ship movements from public locations was legal. On the day of the Pearl Harbor raid, the governor of Hawaii declared martial law. The writ of habeas corpus was suspended, and hundreds of ethnic Japanese considered potentially subversive, including the two ethnic Japanese who participated in the Honolulu espionage ring, were confined without trial -- an option that was unavailable to military and law enforcement officials on the mainland where civilian courts were still operative.
Years later, after the MAGIC cables were declassified, the architect of the West Coast evacuation, Assistant Secretary of War John McCloy, stated that MAGIC was instrumental in shaping the administration's homeland security policies. President Roosevelt himself was an avid reader of the MAGIC messages. Yet virtually every popular account of the ethnic Japanese experience during World War II has ignored MAGIC and its vital importance. Leading high school textbooks condemn evacuation, relocation and internment as shameful injustices -- without informing students of the vast amount of communications intelligence that informed FDR's decisions.
The effort by Japanese-American activists and their media allies to minimize the importance of the intelligence that supported President Roosevelt's wartime decisions amounts to educational malpractice. In order to fairly judge present homeland security measures, all Americans -- especially our students -- deserve an accurate account of the past.